Examples of stellar density distributions of star-forming regions taken at three different redshifts. The top-right, top-left, and lower maps correspond to z = 10.5,7, and 6.14, respectively. The star-forming systems shown in the top-right and top-left panels correspond to the stellar counterparts of the most massive halos visible in the top and bottom panels of Fig. 1. In each panel, the small insets display the star formation histories of the corresponding regions. All clumps identified within the time windows color-coded in the small insets are marked with circles and displayed with the same colors on the corresponding projected stellar density map.